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Better way to do this?

Posted: Fri Jul 23, 2021 10:23 am
by Glenn Schroeder
I finally got this Part to work, but it was a struggle.

image.png

After using the Structural Member function to create both ends I tried every way I could think of to Loft between them. I admittedly go months without needing to do a Loft, but I think I tried every possible setting and kept getting this error.

image.png

I finally created a Surface Loft (and I use Surfaces much less than solid Lofts) and thickened it, which worked, but it seems like there should be a better way. Any ideas?

Re: Better way to do this?

Posted: Fri Jul 23, 2021 11:17 am
by JSculley
This is similar to your previous question on the old forum, for a symmetric version:

https://r1132100503382-eu1-3dswym.3dexp ... NiraOD2n3A

The error message was different, but it might be worthwhile to match up the segment count between the ends and see what happens.

Re: Better way to do this?

Posted: Fri Jul 23, 2021 11:43 am
by Glenn Schroeder
JSculley wrote: Fri Jul 23, 2021 11:17 am This is similar to your previous question on the old forum, for a symmetric version:

https://r1132100503382-eu1-3dswym.3dexp ... NiraOD2n3A

The error message was different, but it might be worthwhile to match up the segment count between the ends and see what happens.
Thanks Jim,

I thought I remembered a similar issue, but wasn't sure I had posted it before, and in any case I haven't spent a week on the other forum learning to do a search so I probably wouldn't have been able to find it anyway.

I pulled up that file (which I still use), and I did add a sketch with enough end points to make the same number of segments as the larger end, but I seem to remember someone (I think it was @matt ) saying the necessity of having an equal number of segments wasn't that important, but maybe I was wrong.

Re: Better way to do this?

Posted: Sun Jul 25, 2021 8:58 pm
by Lucas
Glenn Schroeder wrote: Fri Jul 23, 2021 10:23 am I finally created a Surface Loft (and I use Surfaces much less than solid Lofts) and thickened it, which worked, but it seems like there should be a better way. Any ideas?
I made everything with surface: Both profiles with Extrude Surface, then connected them with Boundary Surface (or Loft Surface - Loft is better if you want to add more profiles to guide the changes in the surface).
image.png

Re: Better way to do this?

Posted: Sun Jul 25, 2021 10:17 pm
by Lucas
Or maybe you want to do with features and keep structural members. It is possible to do with Boundary Feature: Select the faces and apply tangency.
image.png
image.png

And with Loft Feature:
image.png

Re: Better way to do this?

Posted: Thu Jul 29, 2021 8:12 am
by MJuric
Glenn Schroeder wrote: Fri Jul 23, 2021 10:23 am I finally got this Part to work, but it was a struggle.


image.png


After using the Structural Member function to create both ends I tried every way I could think of to Loft between them. I admittedly go months without needing to do a Loft, but I think I tried every possible setting and kept getting this error.


image.png


I finally created a Surface Loft (and I use Surfaces much less than solid Lofts) and thickened it, which worked, but it seems like there should be a better way. Any ideas?
Completely off topic but I love when people post things like this. I found myself looking at guard rails back and forth from work and looking for this piece :shock:

Re: Better way to do this?

Posted: Thu Jul 29, 2021 10:19 am
by Glenn Schroeder
MJuric wrote: Thu Jul 29, 2021 8:12 am Completely off topic but I love when people post things like this. I found myself looking at guard rails back and forth from work and looking for this piece :shock:
That piece is typically used off the end of bridge or overpass concrete parapets. Thrie-beam guardrail (usually two pieces nested one inside the other) is attached to the parapet, and that piece is then used to transition to standard W-beam guardrail.

Without that transition mean nasty things would happen if someone hit the relatively flexible W-beam near the concrete, which is of course rigid.

Re: Better way to do this?

Posted: Thu Jul 29, 2021 10:46 am
by MJuric
Glenn Schroeder wrote: Thu Jul 29, 2021 10:19 am That piece is typically used off the end of bridge or overpass concrete parapets.
Not surprisingly that's where the ones I say where :D